Christian Brothers Academy, located in the Lincroft section of Middletown Township in Monmouth County, in the U.S. state of New Jersey, is a private, all-boys preparatory school for grades nine to twelve, with a focus on Christian education. The school is run by the Institute of the Brothers of the Christian Schools, founded by St. Jean-Baptiste de La Salle. Christian Brothers Academy was originally a farm owned by the prominent Whitney family of New York City, and home to the Greentree Stable. The land was eventually given to the Christian Brothers for the purpose of teaching. The school opened for the first time in September 1959 and was blessed by the Bishop of Trenton on October 11, 1959. Christian Brothers Academy operates independently from the Roman Catholic Diocese of Trenton and is governed by a board of trustees.

Lincroft is an unincorporated community and census-designated place (CDP) within Middletown Township, in Monmouth County, in the U.S. state of New Jersey. As of the 2020 United States census, the CDP had a population of 7,060, reflecting a 15.1% increase from the 6,135 residents enumerated at the 2010 U.S. Census, in turn a decline of 120 residents (-1.9%) from the 6,255 counted in the 2000 U.S. Census.